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1. Daily facial exercises help her to retain the skin's elasticity.

每天做面部运动帮助她保持皮肤弹性。

2. Gluten develops elasticity in a dough.

麸质使生面团有韧劲。

3. The skin eventually loses its elasticity.

皮肤最终会失去弹性.

4. Every sort of spring has a definite elasticity.

每一种弹簧都有一定的弹性.

5. The toughness, lightness, strength, and elasticity of whalebone gave it a wide variety of uses.

鲸须既韧又轻，而且强度和弹性大，这些特点使其用途广泛。